System and an apparatus for controlling electric power supply and methods therefor

ABSTRACT

A system and an apparatus for controlling electric power supply and methods therefore are described. In particular, a system and an apparatus for powering down an electronic device and methods therefore comprises a device and a sensor. The sensor is configured for transmitting a sensing signal to the device via a communication protocol. The device comprises a processing module for receiving and processing the sensing signal, and powering down operation of the device in an event the sensor detects that the device is operating in an absence of the user.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of U.S. patent application Ser. No. 15/357,311, filed Nov. 21, 2016, which claims priority to U.S. Provisional Patent Application No. 62/258,796, filed Nov. 23, 2015, the disclosures of which are incorporated by reference in their entirety.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a system and an apparatus for controlling electric power supply and methods therefor. More particularly, the present invention relates to a system and an apparatus for powering down an electronic device and methods therefor.

Description of Related Art

The technology for powering down electronic and electrical devices is available, and such technology is widely used for a variety of applications.

The purpose of powering down a device is ultimately for power saving. Power can be saved by powering down one or more devices or by causing one or more devices to enter a mode of reduced power consumption when it is clear that they have not been used for a predetermined period of time. Power can also be saved by powering down associated secondary devices when one or more primary devices have been shut down.

As for computing devices, more particularly a personal computer, the device more often than not, is equipped with applications for setting the computer in a power saving mode via the power options made available to the computer. A user is able to customize the power saving modes from the options made available, which include the setting for switching off the monitor or setting the computer into hibernation mode if no activity is detected within a predetermined period of time. There are also applications provided by independent service providers that allow for the computer to sleep or shutdown. These products, however, require software to be installed, and these software applications ‘eavesdrop’ mouse, keyboard, and central processing unit (CPU) activity and monitor for a lack of activity. In the event no activity is detected, the computer and its peripherals will be put into a sleep or shut down state by these software applications.

As for a cable television system, the system implements a device connected to a television for broadcasting cable channels to users for viewing. The device is a cable box, or known as a set-top box (STB) comprises a television tuner input and displays output to a television, and receives an external source of signal and converting the signal into content that can be displayed on the television screen or other display device. More often than not, STBs are equipped with hard disk drives (HDD), memory, and persistent internet connection. The problem lies in the hard powering down of the STB, which is not recommended for the STB, as the hard powering down of the STB forces the STB into shutdown without proper procedure, would damage the STB and appliances connected to the STB.

There are several applications disclosed in prior art for saving energy. US 2014/0285019A1 discloses an energy saving device that has an electrical inlet which connects to a general power outlet, and has at least one monitored electrical outlet connecting to a computing device, the energy saving device having at least one switched electrical outlet which connects to, and supplies electrical power to, at least one peripheral device, which in a preferred embodiment is a computer monitor. The energy saving device further includes a switch to control electrical connection of the inlet to the switched electrical outlet, and thus to control supply of electric power to the peripheral devices, of which the peripherals may include printers, speakers, and desk lamps.

However, US 2014/0285019A1 is directed towards a device comprising an electrical inlet, an electrical outlet, and a switched outlet, which has a complex configuration for saving energy. Moreover, this prior art relies on software implementation.

U.S. Pat. No. 6,282,655B1 discloses a computer interface utilizing a sensor for sensing that a user is in the immediate vicinity of the computer, wherein the interface consists of a motion sensor, computer software for enabling the computer security, a keyboard interface connected to the motion sensor, and a keyboard connected to the keyboard interface.

Likewise, U.S. Pat. No. 6,282,655B1 relies on software implementation.

US 2010/0031072A1 discloses a system for power management and safety protection and a method thereof, wherein the system and method are applicable to a computer device having a sensor, whereby the sensor detects position information of a user relative to the computer device so as to determine whether to enter a sleep mode or a recognition mode, or the sensor detects motion information of the user so as to return to an operating mode.

However, US 2010/0031072A1 is reliant on a sensor that is built with the computer, and that the power management setting for this prior art is only available for computers that are equipped with such sensor. The system of this prior art is, therefore, inflexible.

Having said of the above, it should be noted that software applications, and in-built sensors with rigid operation, introduces extra cost, requirements for skilled installers, security issues for network managers, and extended disruption to workplaces.

There is, therefore, a need for a power saving system and apparatus that are not reliant on software applications, and that the system and apparatus are applicable for a wide range of electrical devices, which are sensitive to hard power down.

SUMMARY OF THE INVENTION

The present invention aims to provide a system, an apparatus, and methods for controlling electric power supply to a device, whereby superfluous software installation is not required, and that the system and apparatus are applicable for a wide range of devices.

It is an object of the present invention to provide a system for controlling electric power supply comprising a device for communicating with a user, a processor for determining electric power supply to the device, and a sensor for monitoring presence of the user.

It is another object of the present invention to provide a system for controlling electric power supply, wherein the processor is configured for transmitting the control signal to the device for powering down operation of the device in an event the sensor detects that the device is operating in the absence of the user.

It is yet an object of the present invention to provide a system for controlling electric power supply, wherein the processor further comprises a control module for controlling electric power supply to a power strip. The processor is further configured for transmitting the control signal to the device for powering down operation of the device in the event the sensor detects that the device is operating in the absence of the user.

It is yet another object of the present invention to provide an apparatus for controlling electric power supply comprising a processor for determining electric power supply to a device, wherein the processor is configured for processing and generating a control signal and transmitting the control signal to the device via a communication protocol. The apparatus comprises a sensor for monitoring presence of a user, wherein the sensor is configured for transmitting a sensing signal to the processor via an interface, and wherein the processor is configured for transmitting the control signal to the device for powering down operation of the device, by receiving and processing the sensing signal from the sensor, in the event the sensor detects that the device is operating in the absence of the user.

It is a further object of the present invention to provide a method of operation of the apparatus comprising the steps of: detecting presence of a user for a predetermined period; and transmitting a control signal to a device connected to the apparatus for powering down the device in the event the absence of the user is detected within the predetermined period, wherein the control signal is an artificial signal comprehensible by the device for powering down operation of the device.

It is yet a further object of the present invention to provide a method of operation of the apparatus connected to a power strip comprising the steps of: detecting presence of a user for a predetermined period; transmitting a control signal to a device connected to the apparatus for powering down the device in an event an absence of the user is detected within the predetermined period; and terminating power supply to at least an electrical outlet of the power strip, wherein the control signal is an artificial signal comprehensible by the device for powering down operation of the device.

It is also an object of the present invention to provide a system for controlling electric power supply comprising a device for receiving external signals, converting the external signals into media content and for broadcasting the media content, and a sensor for monitoring presence of the user, the sensor is configured for transmitting a sensing signal to the device via a communication protocol.

It is another object of the present invention to provide a system for controlling electric power supply, wherein the device comprises a processing module for receiving and processing the sensing signal, and powering down operation of the device in an event the sensor detects that the device is operating in an absence of the user.

It is yet an object of the present invention to provide an apparatus for controlling electric power supply comprising a sensor for monitoring presence of a user, and the sensor is configured for transmitting a sensing signal to a device via a communication protocol.

It is yet another object of the present invention to provide an apparatus for controlling electric power supply, wherein the device is configured for receiving external signals, converting the external signals into media content and for broadcasting the media content, and the device further comprises a processing module for receiving and processing the sensing signal, and powering down operation of the device in an event the sensor detects that the device is operating in an absence of the user.

It is a further object of the present invention to provide a method of operation of the apparatus comprising the steps of: monitoring presence of a user; alerting the user in an event the sensor detects that the device is operating in an absence of the user; tracking detection of the user activity for a predetermined period of time; and powering down the device in the event the absence of the user is detected for the predetermined period of time.

It is yet a further object of the present invention to provide a method of operation of the apparatus comprising the steps of: monitoring presence of a user; alerting the user in an event the sensor detects that the device is operating in an absence of the user; tracking detection of the user activity for a predetermined period of time; and resetting a timer in the event the presence of the user is detected.

The preferred embodiments of the present invention, therefore, contribute to a power saving system, apparatus, and methods that are not reliant on software applications, and that the system and apparatus are applicable for a wide range of electrical devices which are sensitive to hard power down.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a schematic representation of a system for controlling electric power supply according to a preferred embodiment of the present invention.

FIG. 2 illustrates a graphical representation of an apparatus for controlling electric power supply according to a preferred embodiment of the present invention.

FIG. 3 illustrates a graphical representation of an apparatus for controlling electric power supply according to another preferred embodiment of the present invention.

FIG. 4 illustrates a graphical representation of a setup for operation of the apparatus according to a preferred embodiment of the present invention.

FIG. 5 illustrates a graphical representation of a setup for operation of the apparatus according to a preferred embodiment of the present invention.

FIG. 6 illustrates a graphical representation of a setup for operation of the apparatus according to another preferred embodiment of the present invention.

FIG. 7 illustrates a graphical representation of a setup for operation of the apparatus with presence of a user according to a preferred embodiment of the present invention.

FIG. 8 illustrates a schematic representation of a system for controlling electric power supply according to a preferred embodiment of the present invention.

FIG. 9 illustrates a graphical representation of an apparatus for controlling electric power supply according to a preferred embodiment of the present invention.

DESCRIPTION OF THE INVENTION

Described below are preferred embodiments of the present invention with reference to the accompanying drawings. Each of the following preferred embodiments describes an example not limiting in any aspect.

Referring to FIG. 1, the figure illustrates a schematic representation of a system for controlling electric power supply according to a preferred embodiment of the present invention. The system comprises fundamentally a device, a processor (11), and a sensor (12).

The device according to a preferred embodiment of the present invention is for communicating with a user, and the device is energized by electric power being supplied to the device from a main power supply. It is shown in FIG. 1 that the device is a personal computer (21). The personal computer (21) is connected to the processor (11) for determining electric power supply to the device, or in this case the personal computer (21), and the processor (11) is configured for processing and generating a control signal and transmitting the control signal to the device via a communication protocol. The processor (11) is connected to the sensor (12) for monitoring presence of the user, and the sensor is configured for transmitting a sensing signal to the processor (11) via an interface.

The processor (11) according to a preferred embodiment of the present invention is configured for transmitting the control signal to the device for powering down operation of the device, by receiving and processing the sensing signal from the sensor (12), in an event the sensor (12) detects that the device is operating in an absence of the user.

In another preferred embodiment of the present invention, the processor (11) further comprises a control module (13) for controlling electric power supply to a power strip (31). The control module (13) is shown in FIG. 1, residing within the processor (11), and the power strip (31) is shown in FIG. 1 comprising an electrical inlet (33) for receiving electric power supply and a plurality of electrical outlets (32), wherein each outlet (32) supplies electric power to an external device connected to the outlet (32). The control module (13) comprises electronic circuitry for controlling electric power supply to the power strip (31).

The processor (11) is connected to the power strip (31) via a low voltage control cable, preferably but not limited to a RJ11 cable, and the processor (11) transmits the control signal to the device via a communication protocol. The communication protocol is assisted by a universal serial bus (USB) connection (14) to the device, which in this case is the personal computer (21). The USB connection is also configured for receiving electric power from the device.

The sensor (12) in a preferred embodiment of the present invention is an electronic sensor for detecting motion, preferably but not limited to, any one of an infrared sensor or a passive infrared sensor. It will be appreciated that the sensor (12) is preferably other than an electronic sensor, wherein the motion can be detected by: optical sensors such as, preferably but not limited to, a video and camera system; sound sensors such as microphones and acoustic sensors; magnetism such as, preferably but not limited to, magnetic sensors and magnetometer; radio frequency energy such as, preferably but not limited to, radar, microwave, and tomographic motion detection; or vibration sensors such as, preferably but not limited to, triboelectric, seismic, and inertia-switch sensors.

The device in a preferred embodiment of the present invention is an electronic device, as shown in FIG. 1, is a personal computer (21). However, it should be appreciated that the electronic device can be selected from a group of computing devices or electrical equipment configured with high level interface.

Referring to FIGS. 1 and 2, FIG. 2 illustrates a graphical representation of an apparatus for controlling electric power supply according to a preferred embodiment of the present invention, comprising fundamentally the processor (11) and the sensor (12) as depicted in FIG. 1.

The processor (11) shown in FIG. 1, and as described in the foregoing description, is for determining electric power supply to a device. The processor (11) is configured for processing and generating a control signal and transmitting the control signal to the device via a communication protocol.

The processor (11) transmits the control signal to the device via a communication protocol, which is assisted by a USB connection (14) to the device, which in this case is the personal computer (21). The USB connection (14) is also configured for receiving electric power from the device. The processor (11) is connected to the sensor (12) for monitoring presence of the user with the sensor (12) being configured for transmitting a sensing signal to the processor (11) via an interface.

The processor (11) according to a preferred embodiment of the present invention is configured for transmitting the control signal to the device for powering down operation of the device, by receiving and processing the sensing signal from the sensor (12), in an event the sensor (12) detects that the device is operating in an absence of the user.

Referring to FIGS. 1 and 3, FIG. 3 illustrates a graphical representation of an apparatus for controlling electric power supply according to another preferred embodiment of the present invention, comprising fundamentally the processor (11) and the sensor (12) as depicted in FIG. 1. In this preferred embodiment of the present invention, the processor (11) further comprises a control module (13) for controlling electric power supply to a power strip (31). The control module (13) is shown in FIG. 1 residing within the processor (11). The power strip (31) is shown in FIG. 1 comprising an electrical inlet (33) for receiving electric power supply and a plurality of electrical outlets (32), wherein each outlet (32) supplies electric power to an external device connected to the outlet (32).

The processor (11) is connected to the power strip (31), as shown in FIG. 1, via a low voltage control cable (15), preferably but not limited to, a RJ11 cable. The processor (11) transmits the control signal to the device via a communication protocol, which is assisted by a USB connection (14) to the device, which in this case is the personal computer (21). The USB connection (14) is also configured for receiving electric power from the device.

The sensor (12) in a preferred embodiment of the present invention is an electronic sensor for detecting motion, preferably but not limited to, any one of an infrared sensor or a passive infrared sensor. It will be appreciated that the sensor (12) is preferably other than an electronic sensor, wherein the motion can be detected by: optical sensors such as, preferably but not limited to, a video and camera system; sound sensors such as microphones and acoustic sensors; magnetism such as, preferably but not limited to, magnetic sensors and magnetometer; radio frequency energy such as, preferably but not limited to, radar, microwave, and tomographic motion detection; or vibration sensors such as, preferably but not limited to, triboelectric, seismic, and inertia-switch sensors.

The device in a preferred embodiment of the present invention is an electronic device, as shown in FIG. 1, is a personal computer (21). However, it should be appreciated that the electronic device can be selected from a group of computing devices or electrical equipment configured with high level interface.

In a preferred embodiment of the present invention, the apparatus further comprises any one or a combination of a visual indicator, audible indicator, and a switch, wherein the visual indicator is a light emitting diode for indicating operation of the apparatus, the audible indicator is a buzzer for alerting operation of the apparatus, and the switch is for controlling operational state of the apparatus.

Referring to FIG. 4, the figure illustrates a graphical representation of a setup for operation of the apparatus according to a preferred embodiment of the present invention.

As it is shown in FIG. 4, the apparatus according to a preferred embodiment of the present invention is mounted below a monitor of the personal computer (21). This preferred embodiment is a standalone configuration of the apparatus, of which the apparatus is powered by electric power supplied by the personal computer (21).

The method of operation of the apparatus in the preferred embodiment of the present invention in FIG. 4, comprises the steps of initially detecting presence of a user for a predetermined period and transmitting a control signal to a device connected to the apparatus for powering down the device in an event an absence of the user is detected within the predetermined period.

The control signal is an artificial signal comprehensible by the device for powering down operation of the device. In other words, the apparatus instructs the personal computer (21) to sleep/off via an artificial keystroke/mimicry of a keyboard connected to the personal computer (21). Ultimately, no software is required to perform this action.

Referring to FIG. 5, the figure illustrates a graphical representation of a setup for operation of the apparatus according to a preferred embodiment of the present invention.

The keyboard (22) in FIG. 5 is directly connected to the personal computer (21), and in this embodiment, the motion sensor (12) is incorporated with the keyboard (22).

The keyboard (22) comprises, preferably but not limited to, a motion sensor (12) for monitoring presence of a user within a subject, and characterized in that the keyboard (22) is connected to the personal computer (21) and transmits a sleep, hibernate, or shut down command to the personal computer (21) if no movement of a user is detected for a predetermined period within the subject area. The motion sensor (12) is, preferably but not limited to, a passive infrared sensor.

The connection between the keyboard (22) and the personal computer (21) is, preferably but not limited to; a wireless connection such as a Bluetooth connection, or a wired connection such as a USB connection.

The keyboard (22) further comprises preferably a temperature sensor (16) for providing feedback to a building management system of a temperature status at a computer desk or at a keyboard area. In addition, the keyboard (22) may further comprise a light level sensor (18) for providing feedback to a building management system of a light level data at a computer desk or at a keyboard area.

The preferred embodiment of the keyboard (22) is preferably operated by a method comprising the steps of initially detecting movement of a user for a predetermined period, and subsequently instructing a computer to sleep, hibernate, or shut down in the event no presence of a user is detected for the predetermined period.

Referring to FIG. 6, the figure illustrates a graphical representation of a setup for operation of the apparatus according to another preferred embodiment of the present invention.

As it is shown in FIG. 5, the apparatus according to a preferred embodiment of the present invention is mounted below a monitor of the personal computer (21). This preferred embodiment is further connected to a power strip (31), wherein the power strip (31) comprises a plurality of electrical outlets (32) with the personal computer (21), and other peripheral devices connected to the other electrical outlets. Alternatively, as shown in FIG. 7, the apparatus according to a preferred embodiment of the present invention may be mounted to a portion of desk upon which the personal computer (21) is supported. The apparatus may be mounted using double-sided adhesive tape or any other suitable device for mounting the apparatus to a structure.

The method of operation of the apparatus in the preferred embodiment of the present invention in FIG. 6, comprises the steps of initially detecting presence of a user for a predetermined period, transmitting a control signal to a device connected to the apparatus for powering down the device in an event an absence of the user is detected within the predetermined period, and terminating power supply to at least an electrical outlet of the power strip (31).

The control signal is an artificial signal comprehensible by the device for powering down operation of the device. In other words, the apparatus instructs the personal computer (21) to sleep/off via an artificial keystroke/mimicry of a keyboard connected to the personal computer (21). Ultimately, no software is required to perform this action.

Referring to FIG. 8, the figure illustrates a schematic representation of a system for controlling electric power supply according to a preferred embodiment of the present invention. The system comprises fundamentally a device (41) and a sensor (42).

The device (41) according to a preferred embodiment of the present invention is for receiving external signals, converting the external signals into media content, and for broadcasting the media content. The device (41) is, preferably but not limited to, a set-top box, and comprises a hard disk drive (HDD), memory and persistent internet connection, which requires proper shutdown procedure. The system of the present invention is also capable for implementation for devices such as streaming devices or smart televisions. The sensor (42) according to the preferred embodiment of the present invention monitors presence of a user and the sensor (42) is configured for transmitting a sensing signal to the device (41) via a communication protocol. Within the operation of the system of the present invention, the device (41) comprises a processing module (43) for receiving and processing the sensing signal, and powering down operation of the device (41) in an event the sensor (42) detects that the device (41) is operating in an absence of the user.

The device (41) according to the preferred embodiment of the present invention is configured for receiving external signals from a cable network or internet. The external signals are preferably signals comprising media information, which are converted to media content by the device (41), and the media content is subsequently broadcasted to a user. The device (41) is preferably configured for broadcasting media content via a television set (51), and the device (41) is also configured for detecting radio frequency activity. It is shown in FIG. 8 that the device (41) is a set-top box (STB) comprising a processing module (43), high definition media interface (HDMI) port, and a (USB) port. The processing module (43) is configured to receive signals from a radio frequency remote control (53) and infrared signals from an infrared remote control (52). The HDMI port is shown in FIG. 8 to provide connectivity to a television set (51) having a HDMI port and also accommodates HDMI CEC (consumer electronics control) function. The sensor (42) is shown in FIG. 8 that the sensor (42) is connected to the device (41) via a USB port. The device (41) is also shown connected to the internet, preferably via Wifi or Ethernet connection.

The sensor (42) according to the preferred embodiment of the present invention is any one of an infrared sensor or a passive infrared sensor, and the sensor (42) is configured for detecting any one of an infrared activity or a passive infrared activity respectively. The sensor (42) is configured to provide only sensing signals to the device (41). No timer or logic module is required in the sensor (42). In this direct configuration of the sensor (42), cost of manufacturing of the sensor (42) is greatly curtailed.

The sensor (42) in a preferred embodiment of the present invention is an electronic sensor for detecting motion. It will be appreciated that the sensor (42) is preferably other than an electronic sensor, wherein the motion can be detected by: optical sensors such as, preferably but not limited to, a video and camera system; sound sensors such as microphones and acoustic sensors; magnetism such as, preferably but not limited to, magnetic sensors and magnetometer; radio frequency energy such as, preferably but not limited to, radar, microwave, and tomographic motion detection; or vibration sensors such as, preferably but not limited to, triboelectric, seismic, and inertia-switch sensors.

The processing module (43) according to the preferred embodiment of the present invention is configured for alerting the user in the absence of detection of a radio frequency activity, an infrared activity or a passive infrared activity, by preferably displaying an onscreen warning. The processing module (43) resides within the device (41) and is configured for communication with at least a HDMI port, at least a USB port, at least a radio frequency remote control (53), and at least an infrared remote control (52). The processing module (43) preferably comprises a timer configured for tracking detection of a radio frequency activity and an infrared activity or a passive infrared activity for a predetermined period of time. In the event the radio frequency activity, an infrared activity or a passive infrared activity is detected within the predetermined period of time, the timer according to the present invention is configured to reset. The timer is preferably set on the device (41) via an onscreen setup. Also, the processing module (43) preferably comprises a logic module configured for powering down the device (41), electrical appliance, and peripherals connected to the device (41). The timer is initiated when alerting the user for powering down operation of the device (41), electrical appliance, and peripherals connected to the device (41) for a predetermined period of time, for example, ten minutes. The timer decrements every minute, and the powering down operation of the device (41), and any electrical appliance connected to the device (41) is triggered if no radio frequency activity, an infrared activity or a passive infrared activity is detected by the end of the predetermined period of time.

Further, the device (41) of the present invention is configured for detecting the sensor (42) and if the device (41) has an internet connection, the device (41) is able to provide information on a status of the sensor (42), which is a basic reporting on the connection status of the sensor (42), whether the sensor (42) is installed and the sensor (42) is still connected. The objective is to provide persistence data to the utility or program implementers. With regards to the communication protocol, the communication protocol of the present invention is preferably assisted by a USB connection to the device (41), and the USB connection is also configured for receiving electric power from the device (41).

In the preferred embodiment of the present invention, the sensor (42) is plugged into the device (41) via the USB port and the sensor (42) draws power from the USB port. If no user activity is detected, whether radio frequency activity, an infrared activity or a passive infrared activity for a predetermined period of time, then the device (41) will display an onscreen warning, for example, “System will enter sleep mode in X minutes”. It is suggested as starting at ten minutes, and every minute this is decremented and when it gets to zero, the device (41) switches the television (51) to power off states, and switches the peripherals to enter low power standby mode. In the event that the user presses a remote control whether the radio frequency remote control (53) or infrared remote control (52) or if motion is detected, during the warning time, the countdown timer in the device (41) is completely cancelled such that the device (41) and the television (51) do not turn off.

Referring to FIGS. 8 and 9, FIG. 9 illustrates a graphical representation of an apparatus for controlling electric power supply according to a preferred embodiment of the present invention, of which is fundamentally a sensor (42) as depicted in FIG. 8. The sensor (42) is connected to a device (41) shown in FIG. 8.

The sensor (42) according to the preferred embodiment of the present invention monitors presence of a user and the sensor (42) is configured for transmitting a sensing signal to the device (41) via a communication protocol. The device (41) according to a preferred embodiment of the present invention is for receiving external signals, converting the external signals into media content, and for broadcasting the media content. The device (41), is preferably but not limited to, a set-top box, and comprises a hard disk drive (HDD), memory and persistent internet connection, which requires proper shutdown procedure. The system of the present invention is also capable for implementation for devices such as streaming devices or smart televisions. Within the operation of the system of the present invention, the device (41) comprises a processing module (43) for receiving and processing the sensing signal, and powering down operation of the device (41) in an event the sensor (42) detects that the device (41) is operating in an absence of the user.

The device (41) according to the preferred embodiment of the present invention is configured for receiving external signals from a cable network or internet. The external signals are preferably signals comprising media information, which are converted to media content by the device (41) and the media content is subsequently broadcasted to a user. The device (41) is preferably configured for broadcasting media content via a television set (51), and the device (41) is also configured for detecting radio frequency activity. It is shown in FIG. 8 that the device (41) is a set-top box (STB) comprising a processing module (43), high definition media interface (HDMI) port, and a universal serial bus (USB) port. The processing module (43) is configured to receive signals from a radio frequency remote control (53) and infrared signals from an infrared remote control (52). The HDMI port is shown in FIG. 8 to provide connectivity to a television set (51) having a HDMI port and also accommodates HDMI CEC (consumer electronics control) function. The sensor (42) is shown in FIG. 8 that the sensor (42) is connected to the device (41) via a USB port. The device (41) is also shown in FIG. 8 connected to the internet, preferably via Wifi or Ethernet connection.

The sensor (42) according to the preferred embodiment of the present invention is any one of an infrared sensor or a passive infrared sensor, and the sensor (42) is configured for detecting any one of an infrared activity or a passive infrared activity. The sensor (42) is configured to provide only sensing signals to the device (41). No timer or logic module is required in the sensor (42). In this direct configuration of the sensor (42), cost of manufacturing of the sensor (42) is greatly curtailed.

The sensor (42) in a preferred embodiment of the present invention is an electronic sensor for detecting motion. It will be appreciated that the sensor (42) is preferably other than an electronic sensor, wherein the motion can be detected by: optical sensors such as, preferably but not limited to, a video and camera system; sound sensors such as microphones and acoustic sensors; magnetism such as, preferably but not limited to, magnetic sensors and magnetometer; radio frequency energy such as, preferably but not limited to, radar, microwave, and tomographic motion detection; or vibration sensors such as, preferably but not limited to, triboelectric, seismic, and inertia-switch sensors.

The processing module (43) according to the preferred embodiment of the present invention is configured for alerting the user in the absence of detection of a radio frequency activity, an infrared activity or a passive infrared activity, by preferably displaying an onscreen warning. The processing module (43) resides within the device (41) and is configured for communication with at least a HDMI port, at least a USB port, at least a radio frequency remote control (53), and at least an infrared remote control (52). The processing module (43) preferably comprises a timer configured for tracking detection of a radio frequency activity, an infrared activity, or a passive infrared activity for a predetermined period of time. In the event the radio frequency activity, an infrared activity, or a passive infrared activity is detected within the predetermined period of time, the timer according to the present invention is configured to reset. The timer is preferably set on the device (41) via an onscreen setup. Also, the processing module (43) preferably comprises a logic module configured for powering down the device, electrical appliance and peripherals connected to the device. The timer is initiated when alerting the user for powering down operation of the device (41), electrical appliance, and peripherals connected to the device (41) for a predetermined period of time, for example, ten minutes. The timer decrements every minute, and the powering down operation of the device (41), and any electrical appliance connected to the device (41) is triggered if no radio frequency activity, an infrared activity or a passive infrared activity is detected by the end of the predetermined period of time.

Further, the device (41) of the present invention is configured for detecting the sensor (42) and if the device (41) has an internet connection, the device (41) is able to provide information on a status of the sensor (42), which is a basic reporting on the connection status of the sensor (42), whether the sensor (42) is installed, and the sensor (42) is still connected. The objective is to provide persistence data to the utility or program implementers. With regards to the communication protocol, the communication protocol of the present invention is preferably assisted by a universal serial bus (USB) connection to the device (41), and the USB connection is also configured for receiving electric power from the device (41).

In a preferred embodiment of the present invention, the method of operation of the apparatus comprising the steps of initially monitoring presence of a user, then, alerting the user in an event the sensor detects that the device is operating in an absence of the user, then, tracking detection of the user activity for a predetermined period of time, and powering down the device in the event the absence of the user is detected for the predetermined period of time. The user activity comprises any one or in any combination of a radio frequency activity, an infrared activity, or a passive infrared activity.

In a preferred embodiment of the present invention, the method of operation of the apparatus comprising the steps of initially monitoring presence of a user, then, alerting the user in an event the sensor detects that the device is operating in an absence of the user, then, tracking detection of the user activity for a predetermined period of time, and resetting a timer in the event the presence of the user is detected. The user activity comprises any one or in any combination of a radio frequency activity, an infrared activity, or a passive infrared activity.

In the preferred embodiment of the present invention, the sensor (42) is plugged into the device (41) via the USB port and the sensor (42) draws power from the USB port. If no user activity is detected, whether radio frequency activity, an infrared activity, or a passive infrared activity for a predetermined period of time, then the device (41) will display an onscreen warning, for example, “System will enter sleep mode in X minutes”. It is suggested as starting at ten minutes, and every minute this is decremented and when it gets to zero, the device (41) switches the television (51) to power off states, and switches the peripherals to enter low power standby mode. In the event that the user presses a remote control whether the radio frequency remote control (53) or infrared remote control (52) or if motion is detected, during the warning time, the countdown timer in the device (41) is completely cancelled such that the device (41) and the television (51) do not turn off.

Although the invention has been described in detail for the purpose of illustration based on what is currently considered to be the most practical and preferred embodiments, it is to be understood that such detail is solely for that purpose and that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover modifications and equivalent arrangements. For example, it is to be understood that the present invention contemplates that, to the extent possible, one or more features of any embodiment can be combined with one or more features of any other embodiment. 

The invention claimed is:
 1. A system for controlling electric power supply comprising: a device for receiving external signals, converting the external signals into media content, and for broadcasting the media content; and a sensor for monitoring presence of a user and for detecting a control signal, the sensor is configured for transmitting a sensing signal to the device via a communication protocol, wherein the device comprises a processing module for receiving and processing the sensing signal, and safely powering down operation of the device in an event the sensor detects that the device is operating in an absence of the user after a predetermined period of time.
 2. The system according to claim 1, wherein the device is configured for receiving external signals from a cable network.
 3. The system according to claim 1, wherein the device is configured for receiving external signals from internet.
 4. The system according to claim 1, wherein the device is configured for broadcasting media content via a television set.
 5. The system according to claim 1, wherein the device is configured for detecting radio frequency activity.
 6. The system according to claim 1, wherein the sensor is any one of an infrared sensor or a passive infrared sensor.
 7. The system according to claim 6, wherein the control signal is any one of an infrared signal or a passive infrared signal.
 8. The system according to claim 1, wherein the processing module comprises a logic module configured for safely powering down the device, an electrical appliance, or peripherals connected to the device by the end of the predetermined period of time.
 9. The system according to claim 1, wherein the device is configured for detecting and providing information on a status of the sensor.
 10. The system according to claim 1, wherein the communication protocol is assisted by a universal serial bus connection to the device.
 11. The system according to claim 10, wherein the universal serial bus connection is configured for receiving electric power from the device.
 12. The system according to claim 1, wherein the device is configured for alerting the user before safely powering down the operation of the device.
 13. The system according to claim 1, wherein processing module further comprises a timer for tracking the predetermined period of time.
 14. The system according to claim 1, wherein the predetermined period of time is reset in the event of the detection of the presence of the user or the control signal.
 15. An apparatus for controlling electric power supply comprising: a sensor for monitoring presence of a user and for detecting a control signal, and the sensor is configured for transmitting a sensing signal to a device via a communication protocol, wherein the device is configured for receiving external signals, converting the external signals into media content and for broadcasting the media content, and the device further comprises a processing module for receiving and processing the sensing signal, and safely powering down operation of the device in an event the sensor detects that the device is operating in an absence of the user after a predetermined period of time.
 16. The apparatus according to claim 15, wherein the device is configured for receiving external signals from a cable network.
 17. The apparatus according to claim 15, wherein the device is configured for receiving external signals from Internet.
 18. The apparatus according to claim 15, wherein the device is configured for broadcasting media content via a television set.
 19. The apparatus according to claim 15, wherein the device is configured for detecting radio frequency activity.
 20. The apparatus according to claim 15, wherein the sensor is any one of an infrared sensor or a passive infrared sensor.
 21. The apparatus according to claim 20, wherein the control signal is any one of an infrared signal or a passive infrared signal.
 22. The apparatus according to claim 15, wherein the processing module comprises a logic module configured for safely powering down the device, an electrical appliance, or peripherals connected to the device by the end of the predetermined period of time.
 23. The apparatus according to claim 15, wherein the device is configured for detecting and providing information on a status of the sensor.
 24. The system according to claim 15, wherein the communication protocol is assisted by a universal serial bus connection to the device.
 25. The system according to claim 24, wherein the universal serial bus connection is configured for receiving electric power from the device.
 26. A method of operation of the apparatus of claim 15 comprising the steps of: monitoring presence of the user; alerting the user in an event the sensor detects that the device is operating in an absence of the user; tracking detection of the user activity for the predetermined period of time; and powering down the device in the event the absence of the user is detected for the predetermined period of time.
 27. A method of operation of the apparatus of claim 15 comprising the steps of: monitoring presence of the user; alerting the user in an event the sensor detects that the device is operating in an absence of the user; tracking detection of the user activity for the predetermined period of time; and resetting a timer in the event the presence of the user is detected.
 28. The apparatus according to claim 15, wherein the device is configured for alerting the user before safely powering down the operation of the device.
 29. The apparatus according to claim 15, wherein the processing module further comprises a timer for tracking the predetermined period of time.
 30. The apparatus according to claim 15, wherein the predetermined period of time is reset in the event of the detection of the presence of the user or the control signal. 